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  • Title: Structure and transcription of the gene coding for subunit 3 of cytochrome oxidase in wheat mitochondria.
    Author: Gualberto JM, Domon C, Weil JH, Grienenberger JM.
    Journal: Curr Genet; 1990 Jan; 17(1):41-7. PubMed ID: 2155710.
    Abstract:
    The wheat mitochondrial (mt) cox3 has been localized and sequenced. The gene exists as a single copy in the wheat mt master chromosome and is transcribed into a single 1.2 kb RNA, whose extremities have been mapped. Comparison of the wheat and Oenothera cox3 sequences gives ambiguous indications concerning the amino acid coded by the codon CGG. Upstream and downstream of the wheat cox3 gene, two short sequences of 43 bp and 69 bp respectively are present, which are almost identical to sequences present in the flanking regions of other plant mitochondrial genes. These common sequences seem to have played a role in the rearrangements which caused sequence divergence of the plant mt genomes during evolution. Furthermore, mapping of wheat and maize cox3 and cob transcripts suggests that some of these common sequences can play a role in the regulation of transcription or processing.
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